ASME-Y14.5M-中英文对照版.docx

COMMON SYMBOLS/ COMMON SYMBOLS/通用符号 Shown below are the most common symbols that are used with geometric tolerancing and other related dimensional requirements on engineering drawings. Note the comparison with the ISO standards. Most of the symbology is identical. There are a few symbols that are used in the ASME Y 14.5, 1994 standard that are being proposed for the ISO standards. The symbols marked with an “x” are new or revised from the previous Y14.5M, 1982 standard. /以下显示的是最通用的符号，在工程图中，它和几何公差及其它相关的尺寸要求联合使用。下表同时列出 ISO 标准中相应的符号。绝大部分符号表示是一样的。一少部分 ASME Y 14.5, 1994 标准独有的符号，正被提议用千ISO 标准。标记着“x” 的符号是新的或者是由以前的 Y14.5M, 1982 标准修订的。 SYMBOL（符号） ASME Y14.5M ISO FEATURE CONTROL FRAME 公差框格 DIAMETER/直径 SPHERICAL DIAMETER/球直径 AT MAXIMUM MATERIAL CONDITION 最大实体条件 AT LEAST MATERIAL CONDITION 最小实体条件 REGARDLESS OF FEATURE SIZE 忽视特征尺寸 NONE/什么也没有 NONE/什么也没有 PROJECTED TOLERANCE ZONE 投影公差带 X FREE STATE/自由状态 X TANGENT PLANE 相切面 (Proposed)（被提议的） X STATISTICAL TOLERANCE 统计公差 NONE/什么也没有 X RADIUS/半径 R R X CONTROLLED RADIUS /约束半径 CR NONE/什么也没有 SPHERICAL RADIUS/球半径 SR SR BASIC DIMENSION/基本尺寸 (theoretically exact dimension in ISO) （ISO 中理论上精确的尺寸） X DATUM FEATURE 基准特征 * * DATUM TARGET 基准目标 TARGET POINT/基准点 DIMENSION ORIGIN 尺寸原点 REFERENCE DIMENDION/参考尺寸 (Auxiliary dimension in ISO) /ISO 中辅助的尺寸 ( 50 ) ( 50 ) NUMBER OF PLACES /处数 8x 8x COUNTERBORE/SPOTFACE 傥沉头孔/孔口平面 COUNTERSINK/钻沉头孔 DEPTH/DEEP/深度 SQUARE/正方形 ALL AROUND/全周 NONE DIMENSION NOT TO SCALE 尺寸没按比例 ARC LENGTH/圆弧长度 X BETWEEN/在两者之间 NONE SLOPE/斜面 CONICAL TAPER/锥形 ENVELOPE PRINCIPLE 包络线原理 NONE(implied)/（暗指） Note: * May be filled or not filled/注：*可能填实也可能不填实 RADIUS RADIUS, CONTROLLED RADIUS/半径，约束半径 There are two types of radii tolerance that can be applied, the radius and controlled radius. The radius (R) tolerance is for general applications. The controlled radius (CR) is used when it is necessary to place further restrictions on the shape of the radius, as in high stress applications. /有两种类型半径公差能被应用：半径和约束半径。半径（R）公差是通用的。而约束半径(CR)则用千需要 对半径的